摘要
雷暴天气会对飞机运行安全产生严重影响,在进近航段中若遭遇雷暴天气会导致改航不经济、实时性差、效率低等问题,采用改进的动态窗口算法(DWA)对雷暴天气下的进近航线进行仿真规划。算法前期通过建立DWA下的飞机运动模型及人为设定的雷暴轨迹进行模拟仿真,验证算法躲避雷暴改航仿真的功能性;通过对案例中的雷暴位移坐标进行时间相关的拟合,得到雷暴预测移动轨迹,并带入算法进行仿真;将实际改航航迹和仿真改航航迹进行图像的余弦相似度及经济性、实用性分析。结果表明:该算法能够对进近航段上的雷暴进行有效规避,并且轨迹光滑,经济可行,结合新航线技术具有较强的实用性。
Thunderstorm weather has a serious impact on the safety of aircraft operation.During approach segment,thunderstorm weather can result in uneconomical route changing,poor real-time performance and low efficiency etc.To solve these problems,the advanced dynamic window algorithm(DWA)is adopted to simulate the approach trajectory under thunderstorm weather.In the early stage of the algorithm,the aircraft motion model under DWA is established and the thunderstorm trajectory is artificially set for simulation to verify the functionality of the algorithm to avoid thunderstorm diversion simulation.Then,by fitting the thunderstorm displacement coordinates in the case with time correlation,the thunderstorm predicted movement trajectory is obtained and brought into the algorithm for simulation.Finally,the cosine similarity,economy and practicability of the actual and simulation diversion track are analyzed.The results show that the algorithm can effectively avoid thunderstorms in the approach segment,and the trajectory is more smooth,economical and feasible.Combined with the new route technology,it is of strong practicability.
作者
鲁力
刘晨宇
LU Li;LIU Chenyu(College of Air Traffic Management,Civil Aviation Flight University of China,Guanghan 618307,China)
出处
《航空工程进展》
CSCD
2022年第2期150-158,共9页
Advances in Aeronautical Science and Engineering
基金
中国民用航空飞行学院青年基金(Q2020-118)。
关键词
雷暴天气
多项式拟合
动态窗口算法
余弦相似性
thunderstorm weather
polynomial fitting
dynamic window algorithm
cosine similarity
